Re: [ ruby-Bugs-1917 ] Pathname#unlink fails on a symlink which points to a directory.

Hello.

>I'll fix it as follows.
>
>Index: lib/pathname.rb
>===================================================================
>RCS file: /src/ruby/lib/pathname.rb,v
>retrieving revision 1.38
>diff -u -p -r1.38 pathname.rb
>--- lib/pathname.rb	12 Dec 2004 16:02:08 -0000	1.38
>+++ lib/pathname.rb	15 May 2005 05:49:22 -0000
>@@ -868,10 +868,10 @@ class Pathname    # * mixed *
>   # Removes a file or directory, using <tt>File.unlink</tt> or
>   # <tt>Dir.unlink</tt> as necessary.
>   def unlink()
>-    if FileTest.directory? @path
>-      Dir.unlink @path
>-    else
>+    begin
>       File.unlink @path
>+    rescue Errno::EISDIR
>+      Dir.unlink @path
>     end
>   end
>   alias delete unlink

This code seems to work on Linux only.

http://www.linux.or.jp/JM/html/LDP_man-pages/man2/unlink.2.html says
Errno::EISDIR is not defined on POSIX and returned on Linux 2.1.132 or later.
Actually, Errno::EACCES is returned on Windows.

E:\ruby-cvs\bcc32>irb19
irb(main):001:0> require "pathname"
=> true
irb(main):002:0> Dir.mkdir("tmp")
=> 0
irb(main):003:0> Pathname.new("tmp").unlink
Errno::EACCES: Permission denied
 - tmp
        from E:/ruby-cvs/ruby/lib/pathname.rb:872:in `unlink'
        from E:/ruby-cvs/ruby/lib/pathname.rb:872:in `unlink'
        from (irb):3